-5 increased by one-half of a number is a maximum of 3​

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Plot the intercepts to graph the equation

Find the nonpermissible replacement for binthis expression. b2/5b +5